Rice Vinegar (Best Option)
1 tablespoon per 1 tablespoon of lemon juiceRice vinegar contains acetic acid similar to lemon juice's citric acid, which helps brighten and balance the flavors in fried rice by cutting through the oil and enhancing umami notes.
To use rice vinegar effectively, add it gradually and taste as you go since its acidity is slightly less sharp than lemon juice. Avoid adding too much to prevent a vinegary aftertaste.
Compared to lemon juice, rice vinegar offers a gentler acidity that maintains the dish's savory profile while contributing a subtle sweetness, resulting in a well-rounded flavor.